Final answer:
Iron Maiden, Judas Priest, Motörhead, Saxon, and Diamond Head are associated with the New Wave of British Heavy Metal (NWOBHM), a sub-genre from the late 1970s and early 1980s that emphasized heavy, loud, and fast guitar-driven music.
Step-by-step explanation:
The bands Iron Maiden, Judas Priest, Motörhead, Saxon, and Diamond Head were central to the New Wave of British Heavy Metal (NWOBHM) movement and sub-genre that emerged in the late 1970s and early 1980s. This musical movement saw a return to the heavy metal roots of loud and fast guitars, complex guitar solos, and strong rhythms. Unlike the Surf Rock of the 1960s which was influenced by the Pacific Northwest's dance halls, NWOBHM was a reflection of a rebellious youth culture in the UK, resonating with fans who were craving music that was heavier and more aggressive than mainstream rock.